Control system and method for a bi-fuel engine

Details Control system and method for a bi-fuel engine Control system and method for a bi-fuel engine

F - Mech Eng,Light,Heat,Weapons

02

D

F02D 19/06 (2006.01)

Patent

CA 2394457

A control system 14 for a bi-fuel engine 12 Is provided. The control system 14 includes a powertrain controller 52 and a bi-fuel controller 54. The controller 52 has a set of fuel injector drivers 92. The controller 50 has a set of gasoline fuel injector drivers 104 and a set of alternate fuel (AF) fuel injector drivers 106. Each of drivers 92 in controller 52 is electrically connected to a driver 104 and a driver 106 in controller 50. Thus, a control signal generatea by a single driver 92 can be utilized by either of drivers 104, 106 to generate a corresponding control signal for controlling a gasoline fuel injector 38 or a AF fuel injector 40, respectively.

Cette invention concerne un système de gestion 14 pour moteur bicarburant 12. Le système de gestion 14 comprend un contrôleur du groupe motopropulseur 52 et un contrôleur du système bicarburant 54. Le contrôleur 52 est doté d'un ensemble de circuits d'injection de carburant 92. Le contrôleur 50 est doté d'un ensemble de circuits d'injection d'essence 104 et d'un ensemble de circuits d'injection du second carburant (SC) 106. Chacun des circuits 92 du contrôleur 52 est relié électriquement à un circuit 104 et à un circuit 106 du contrôleur 50. Ainsi, un signal de commande émis par un seul circuit 92 peut-il être utilisé par le circuit 104 ou 106 pour émettre un signal de commande correspondant pour contrôler un injecteur d'essence 38 ou un injecteur SC 40, respectivement.

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